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Finding the Fourth Proportional to 3,759.64, 5,188.29 and 2,103.64

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Solution

The fourth proportional to 3,759.64, 5,188.29 and 2,103.64 is: 2,903.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.64 : 5,188.29 = 2,103.64 : x
  2. Step 2: Convert to fraction form
    3,759.64/5,188.29 = 2,103.64/x
  3. Step 3: Cross multiply
    3,759.64x = 5,188.29 × 2,103.64
  4. Step 4: Simplify right side
    3,759.64x = 10,914,294.38
  5. Step 5: Solve for x
    x = 10,914,294.38/3,759.64
  6. Step 6: Final answer
    x = 2,903.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.